Home / 80,079,392.80-120,119,089.20-71,576,336.80

Finding the Fourth Proportional to 80,079,392.80, 120,119,089.20 and 71,576,336.80

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Solution

The fourth proportional to 80,079,392.80, 120,119,089.20 and 71,576,336.80 is: 107,364,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,079,392.80 : 120,119,089.20 = 71,576,336.80 : x
  2. Step 2: Convert to fraction form
    80,079,392.80/120,119,089.20 = 71,576,336.80/x
  3. Step 3: Cross multiply
    80,079,392.80x = 120,119,089.20 × 71,576,336.80
  4. Step 4: Simplify right side
    80,079,392.80x = 8,597,684,384,688,442
  5. Step 5: Solve for x
    x = 8,597,684,384,688,442/80,079,392.80
  6. Step 6: Final answer
    x = 107,364,505.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.